Yamaha has for decades liked to have the lead product in the " go to " solution that every rental company needed to have at least one of and that every touring engineer could count on. From the PM1000 to the PM4K to the 5D there were always competitors with more cutting edge consoles but while you couldn't count on finding a Midas XL3 in every burg a 4K was always nearby. The PM1D was sort of an outlier in Yamaha's design history and once the 5000 died a quick and ignominious death I suspect that Yamaha will not venture to the cutting edge again. Pm5D niche or lower would be my guess.